Improvement in machines for bending- clevis and stirrups



' tlnitelitetet @met ire.,

' through a slot suiic;

WILLI-AM c. KAISER.,` or LOUISVILLE, KENTUCKY.

Lehrers Patent N0.- 1o6,172, @managen 9, 1870.

'I IMPRQVEMENT IN MAHINES PoR BENDING cLEvrs AND ,STIRRUPS The Schedule referred to in these Letters Patent and making part of the same.

Bending-Machines for th purpose' of 'bending plowclevisesf stirrups,-.chainfliuks, and other.: similar artioles,\ot' which the following is a specification.

- This invention consists inthe construction and arrangement of parts, as heieinafter'more f ully described and claimed.

The machine iscolnpos'ed ot a east-iron plate, to the =f: icc ot` 'w hich isrsecured,the proper forms for bending any desired shape, the center form of which gissecured to the` plate by means of'a bolt, so as to be Aeasily changedwhen necessary to bend Aother forms,

while the outside levers or forms are secured to the plate by screw-boltsthrough the ends, on which they are -lnade to turn, in? order to open out, and also to closeup against the centerform as the ironie/bent.

These forms areoperated by means of pinssecurely fastened in'a'side plate, immediately under the mainV plate, the ends of which pins are made to extend up 'entlyto enter. another similar slot in the lever forms.

The vlast-named slots in the lever forms are cut at an 'angle of about thirtydgreesy'more or less, as the `:nature ot' the work mayreqnire it', so that, when "placed in theirfproper position, the angleof the slots will-'be re\'ersed,ibrming a double inclined plane 'or wedge, acted on by the pins of the slide-plate below, which passes up through the slot, and by means of which the forms are forced together against 'the iron as the slide-plate is drawn out in operating the machine, -which is done by a hand-lever for that purpose.v

Havingthus fully explained thel natur'e ot' my. in-

" vention, a more minute description may be seen 'by reference to the drawing.

Figure 1 'is a perspective view ol' the machine, complete.` i' Y f Figure 2 is a. View of the slide-plate, showing the `pins and slots,.and the manner of att-aching it to the inain plate..

A is the main plateof the machine, and is made of cast-iron.

G is the movable center form, and -is'secured tothe plate by a bolt. -Y

v O Gare the outside leversor forms, which are secured to the plate A by bol ts passi ng through theends, en Wllich they turn. A

. D D are the slot-holes, forming the inclined plane by which they are operated. Y

E E are the bolts on which the levers turn.

F F are the pins of the slide-plate, by which they are operated.

H is a. small pin, to be set up against the article to be bent, to keep it fronibendiug backward in the ccnter. Y

Itis the lever by which it is operated. '.J and K are lugs in the plate, to which the lever is attachedby the link L. i

-`M is the slide-plate below.A

Nis the s lot.v 'l is the boltby which it is secured to the plate, and on which it slides." F F arcthe pins that operate the lever forms.

P is the link connecting the slide-plate M with the rock-shaft Q.

R is vthe lever by whieh'the machine is operated. I claim as my invention.-

clamps G C, the movable center-piece G, the vertical pins F F, slotted plate'A,-slot`ted and grooved sliding plate M, boltl T, connecting-rod P, transverse rock. shaft Q, having its bearings in pendants secured Ato the lower side of plate A, and lever It, allconstrnctcdscribed.

WILLIAM C. KAISER.V Witnesses:

E. F. HUYCK, W.W. PULLEN. 

